Storing corny keg with CO2
I almost have my first batches of beer ready:
1. A scottish ale, which is clearing in the secondary.
2. Chocolate porter, which is busy fermenting and due to go into the secondary later this week.
Both will be ready for kegging in two weeks.
So, both ales are in plastic buckets of which I only have two.
My plan is to sanitize both my corny kegs this week, then fill one with CO2. The other will be temporarily used to drain off my chocolate porter. Then I'll clean and sanitize its plastic fermenter, siphon back into the fermentor and use that for the secondary. I will re-clean and sanitize the second keg and put CO2 into it.
So, would CO2 in my kegs keep them sanitized until I do the final kegging a week later?
I could always store the kegs under regular air, and resanitize the following week.
I'd appreciate any suggestions.